Speaker
Affilliation
Basque Country University
Abstract
Semantic Role Labeling (SRL) is the problem of analyzing clause predicates in open text by identifying arguments and tagging them with semantic labels indicating the role they play with respect to the verb. Such sentence-level semantic analysis allows to determine "who" did "what" to "whom", "when" and "where", and, thus, characterize the participants and properties of the events established by the predicates. This kind of semantic analysis is very interesting for a broad spectrum of NLP applications (information extraction, summarization, question answering, machine translation, etc.), and has raised a lot of interest by the NLP community in the last years. In this seminar, I will present an introduction to the task and current challenges.